Census ACS · Missouri
ZIP Code 63021
ZIP code 63021 is located in Missouri with a population of 56,297. The median household income is $113,822 and the median home value is $324,300.
56,297
Population
$113,822
Median Income
$324,300
Median Home Value
40.4
Median Age
Race & Ethnicity
| White | 77.5% |
| Black | 2.5% |
| Asian | 0.0% |
| Hispanic (any race) | 0.6% |
Male: 49.2% · Female: 50.8%
Economy & Income
$113,822
Median Household Income
$54,248
Per Capita Income
3.2%
Poverty Rate
Housing
$324,300
Median Home Value
$1,362
Median Rent
79.0%
Homeownership
Education
97.6%
High School+
62.1%
Bachelor's Degree+
Nearby ZIP Codes
Largest cities in Missouri
Part of Missouri
Metro areas in Missouri
Frequently Asked Questions
ZIP code 63021 in Missouri has a population of 56,297 according to latest Census ACS data.
The median household income in ZIP 63021 is $113,822. The per capita income is $54,248. The poverty rate is 3.2%.
ZIP code 63021 is located in Missouri.
More from Missouri
Data for ZIP Code Tabulation Area (ZCTA) 63021 from the American Community Survey 5-Year estimates. ZCTAs approximately correspond to USPS ZIP code delivery areas but are built from Census blocks and may not match exactly.
The this entity record above pulls directly from the U.S. Census Bureau ACS and decennial files. What follows is the per-entity context — how this entity sits in the broader U.S. population demographics distribution and which underlying factors drive the headline numbers.
The methodology behind every numeric value on this page is publicly documented on the the U.S. Census Bureau ACS and decennial files portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. states, metros, cities, and ZIPs with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: U.S. Census Bureau ACS, 2026.